Republican presidential candidate Donald Trump responded aggressively on the deadliest mass shooting in US history. Trump said that, the mass shooting at a gay club in Orlando proves that, he's right on his controversial call for a temporary ban on Muslim migration to the United States.     

"Appreciate the congrats for being right on radical Islamic terrorism, I don't want congrats, I want toughness & vigilance," Trump tweeted just hours after the incident.

"What has happened in Orlando is just the beginning. Our leadership is weak and ineffective. I called it and asked for the ban. Must be tough," Trump wrote on Twitter.

"In his remarks today, President Obama disgracefully refused to even say the words 'Radical Islam'. For that reason alone, he should step down," Trump said, adding that, "if Hillary Clinton, after this attack, still cannot say the two words 'Radical Islam' she should get out of this race for the presidency."

Nandini